Cleanliness control during steam pipeline cutting
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Two large steam inlet valves need to be replaced in the turbine steam inlet pipeline, and the existing steam pipes must be cut. How can the cleanliness of the steam pipes be ensured during this process, and how can it be determined whether the pipe cleanliness meets the requirements?
Were the valve connections and pipeline fittings all replaced as well? If cleanliness is a concern, is it the contamination of the sections that were not replaced, or rather the new pipelines after replacement? This needs to be clarified, as it is closely related to the operating conditions. After all, there are specific standards for steam turbine purging, and following those standards should prevent any problems